2. Job Set-up Information
______________________
A. Referenced Information
-------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
24-41-00-861-002 Energize the Aircraft Electrical Circuits from the External Power 24-41-00-862-002 De-energize the Aircraft Electrical Circuits Supplied from the External Power TSM 21 PB 101 (for corrective action)
3. Job Set-up
__________ Subtask 21-26-00-869-108
A. Aircraft Maintenance Configuration
(1) Energize the aircraft electrical circuits
(Ref. TASK 24-41-00-861-002).
4. Procedure
_________ Subtask 21-26-00-440-055
A. On the VENTILATION part of the overhead control and indicating panel 22VU:
-push the BLOWER pushbutton switch (the OVRD legend goes off). Subtask 21-26-00-810-055
B. Do the trouble-shooting of the system (Ref. TSM 21 PB 101). Make the applicable corrections.
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5. Close-up
________ Subtask 21-26-00-941-093
A. Aircraft Maintenance Configuration
(1) Remove the warning notice(s). Subtask 21-26-00-862-073
B. De-energize the aircraft electrical circuits (Ref. TASK 24-41-00-862-002).
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TASK 21-26-00-040-007
Extract Fan Inoperative - Check of Conditioned-Air Inlet Valve (21HQ) Open
1. Reason for the Job
__________________
Refer to the MMEL TASK: 21-26-02 b)
Avionics Equipment Ventilation
Extract Fan
2. Job Set-up Information
______________________
A. Fixtures, Tools, Test and Support Equipment
-------------------------------------------------------------------------------REFERENCE QTY DESIGNATION
-------------------------------------------------------------------------------
No specific warning notice
No specific access platform 1.50 m (4 ft. 11 in.)
B. Referenced Information
-------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
24-41-00-861-002 Energize the Aircraft Electrical Circuits from the External Power 24-41-00-862-002 De-energize the Aircraft Electrical Circuits Supplied
from the External Power 31-60-00-860-001 EIS Start Procedure 31-60-00-860-002 EIS Stop Procedure 52-41-00-410-002 Close the Avionics Compartment Doors after Access 21-26-00-991-011 Fig. 406
3. Job Set-up
__________
Subtask 21-26-00-861-075
A. Aircraft Maintenance Configuration
(1)
Energize the aircraft electrical circuits
(Ref. TASK 24-41-00-861-002).
(2)
Do the EIS start procedure (Upper ECAM DU and lower ECAM DU only) (Ref. TASK 31-60-00-860-001).
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Subtask 21-26-00-010-065
B. Get Access
(1)
Put the access platform in position at the access door 824.
(2)
Open the access door 824.
4. Procedure
_________ Subtask 21-26-00-040-056
A. Conditioned Air Inlet Valve
(Ref. Fig. 406/TASK 21-26-00-991-011)
(1)
On the VENTILATION section of the overhead control and indicating panel 22VU:
-Release the EXTRACT pushbutton switch (the OVRD legend comes on).
(2)
On the bottom part of the upper ECAM display unit:
-the VENT EXTRACT FAULT warning comes into view.
Disregard this warning.
On the ECAM control panel:
-push the CLR key.
(3)
If the VENT BLOWER FAULT warning comes into view:
-push the CAB FANS pushbutton switch on the VENTILATION section of the panel 22VU (the OFF legend goes off),
-make sure that the VENT BLOWER FAULT warning goes out of view.
(4)
In the avionics compartment:
-Make sure that the conditioned-air inlet valve 21HQ is open (the position indicator of the valve is at 0).
5. Close-up
________ Subtask 21-26-00-410-066
A. Close Access
(1)
Make sure that the work area is clean and clear of tool(s) and other items.
(2)
Close the access door 824 (Ref. TASK 52-41-00-410-002).
(3)
Remove the access platform(s).
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Subtask 21-26-00-942-079
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